SuppScoreLab
SuppScoreLab
EVIDENCE-BASED SUPPLEMENT SCORING
6.7/10
AVERAGE

Confidence: 80%

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement, 150 Count (Packaging May Vary)

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement (Packaging May Vary)

B00K2RJAR0

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Decision summary

CONSIDERAVERAGE

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Best for

Buyers comparing price and availability and okay with a middle-of-the-pack option.

Consider another option if

You prefer fully transparent formulas over blends and ambiguous labeling.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

5.0/10

Acceptable dosing, but not standout

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Multi-ingredient formulation analysis

Dose 5/10 · Bioavailability 5.3/10 · Coherence 0/10

A proprietary blend limits independent dose verification.

This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.

Score summary

Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3)). The main limitation is that proprietary blend prevents independent dose verification.

Strengths

Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3))
Iodine: dose within clinically studied range (evidence A)
Zinc: dose within clinically studied range (evidence A)

Weaknesses

Proprietary blend prevents independent dose verification
Vitamin-d: below clinically studied range
Formula coherence is weak: diluted, decorative or overly complex

Final verdict

A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

ℹ At the minimum effective range, but below the optimal dose; evidence is strong

Dose meets the minimum effective range, but is below the optimal dose used for stronger effects. This is a limiting factor: Dose is below the ranges usually used for stronger effects. The declared form is acceptable, but not among the best-absorbed options.

Scientific evidence

Meta-analysis

Hemila & Chalker Cochrane review vitamin C and common cold duration

Cochrane Database of Systematic Reviews • 2013

PMID: 23440782.0

RCT

Padayatty et al. RCT on vitamin C antioxidant capacity in healthy adults

Journal of the American College of Nutrition • 2001

PMID: 11684527.0

⚠ Strong evidence exists, but dose may be too low to be effective

A clear drag on the formula: Dose is likely below clinically useful levels. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Martineau et al. meta-analysis vitamin D supplementation and respiratory infections

BMJ • 2017

PMID: 26864360.0

Meta-analysis

Bischoff-Ferrari et al. meta-analysis vitamin D fracture prevention

BMJ • 2009

PMID: 20198382.0

✔ Clinically effective dose with moderate supporting evidence

Dose is within the optimal/effective range. The declared form supports strong absorption.

Scientific evidence

RCT

Broome et al. RCT selenium and immune function

American Journal of Clinical Nutrition • 2004

PMID: 14657398.0

RCT

Clark et al. RCT selenium supplementation and cancer prevention

JAMA • 1996

PMID: 8629283.0

ℹ Dose is within established clinical ranges, but lacks direct studies

Dose is within the optimal/effective range. The declared form is acceptable, but not among the best-absorbed options.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 1.1 mgOptimal: 10 mgUpper: 40 mgGrade: B

ℹ Dose is within established clinical ranges, but lacks direct studies

Dose is within the optimal/effective range. A clear strength: Dose is strong and within effective ranges. The declared form is acceptable, but not among the best-absorbed options.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 0.9 mgOptimal: 1.5 mgUpper: 10 mgGrade: B

✔ Clinically effective dose with strong supporting evidence

Dose is within the optimal/effective range. This is a limiting factor: Dose is strong and within effective ranges. The declared form is not one of the better-absorbed options.

Scientific evidence

Meta-analysis

Singh & Das Cochrane review zinc for common cold

Cochrane Database of Systematic Reviews • 2011

PMID: 22553186.0

RCT

Prasad et al. RCT zinc supplementation and testosterone in elderly men

Nutrition • 1996

PMID: 8875519.0

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement, 150 Count (Packaging May Vary)

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement, 150 Count (Packaging May Vary)

6.7/10
View on Amazon →

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

i

Proprietary blend limits dose transparency

Exact ingredient amounts cannot be verified clearly.

Info
!

Vitamin D dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning
⚠

Formula design looks less coherent than stronger alternatives

The formulation appears less focused than better-built options.

Note

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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